[ARC5] Cleaning Capacitor Oil Leakage

[Kenneth G. Gordon]

On 27 Oct 2012 at 11:07, Richard Knoppow wrote:

> avoided.  A lot of bathtub type caps are potted with some 
> form of wax. I don't know what exactly the wax was made 
> from. It appears to be a mixture of paraffin wax and resin 
> of some sort. I have not found a sure fire solvent for it.

That which is used in the can-caps is beeswax, period. Beeswax is extremely 
difficult to remove completely. When I rebuild can-caps (or "flower-pots" as 
the Oz-ies call them) I first remove the capacitors, then heat the pot to melt 
as much of the beeswax as possible out of them. Then I use Acetone to get 
as much of the rest of it as I can remove. I have never yet been able to 
remove ALL of it.

The trouble with Acetone is that it also takes off the painted numbers and 
names that are on the outside of the can.

I wish there was something more effective against beeswax, but I have not 
yet found anything better than heat and Acetone.

Ken W7EKB